# 使用 def 关键字定义函数
def multiple_table():
    """打印九九乘法表"""
    i = 1
    while i <= 9:
        m = 1
        while m <= i:
            print("%d * %d = %d" % (m, i, i * m) , end="\t")
            m += 1
        print("")
        i += 1
